Calender-rack



J. T. TICE.

CALENDAR RACK.

APPLICATION HLED MAYI9y1919.

Patented Dec. 7, 1920.

54402 10601 John T Slice luow witness a-o I UNITED STATES JOHN T. TIOE, OF MANCHESTER, GEORGIA.

CALENDER-RACK.

Application filed May 19, 1919.

T 0 all whom it may concern:

Be it known that I, JOHN T. Tron, a citizen of the United States, residing at Manchester, in the county of Meriwether and State of Georgia, have invented new and useful Improvements in Calenderltacks, of which the following is a specification.

This invention has reference to calender racks for picking machines in textile mills, and has for its primary object to produce a device that will materially save labor and material in the operation of the machinery.

It is a further object of the invention to produce a calender rack for picking machines that is provided with a fixed and with a movable head, the latter being pivoted to the fixed head and. locked thereon by a fragile element which will wear or shear off when an excess of pressure of a lap pin that finds a bearing in the said pivoted head is exerted thereagainst so that the pivoted head will be free of its locked connection to the fixed head and permitted to swing there on, whereby the breakage of the parts of the machine common to such over pressure will be eii'ectivelyovercome.

It is a still further object of the invention to produce a calender rack for use on picker machines including an inwardly extending angle fixed head at the upper end thereof to which is pivoted an outwardly extending movable head that engages with the lap pin, the said movable head being fixed to the stationary head by a breakable element, the fixed and movable heads add ing weight to the rack so that the same will be perfectly balanced for the calender rack rollers to follow the lap pin to permit of the cotton being tightly wound upon the latter as well as preventing the bending or breaking of the lap pin of the same, together with the rack hanging outwardly on the main frame of the machine.

Other objects and advantages will present themselves as the nature of the invention is better understood, reference being had to the accompanying drawings, in which:

Figure 1 is a side elevation of the improvement.

Fig. 2 is a front elevation thereof.

Fig. 3 is a sectional view approximately on. the line 3-3 of Fig. 2.

Fig. 4 is a sectional View approximately on the line 4:--t of Fig. 3.

In textile mills the stock is run through several processes of picking machinery in Specification of Letters Patent.

Patented Dec. 7, 1920.

Serial No. 298,156.

order to clean the said stock and to produce a lap or roll of uniform thickness. The stock at this stage of manufacture is very light and fluffy, and in order to produce a compact lap or roll the stock, after passing through the machine is wound by calender rolls onto a lap pin. This lap pin is held down at both ends by the calender racks. These racks are geared to a common shaft, the turning of which is retarded by a friction drum, weight and lever. In order to get desired pressure on the lap pin the proper amount of friction is applied to the friction drum. Quite often the train of gears between the calender racks and friction drum becomes choked or excessive friction is applied to the friction drum. In either instance the pressure on the lap pin of the calender racks becomes so great as to break the calender racks or some part of the train of gearing.

With my invention, as will hereinafter appear, the breakage of these parts will be entirely eliminated, while at the same time laps may be produced by greater pressure than is ordinary. This additional pressure is very desirable in making cotton laps in textile plants, as it has a tendency to prevent the laps froln splitting when the same are unrolled in the subsequent processes of manufacture.

The improvement is primarily directed to the head portion or top of the calender racks, which comes in direct contact with the lap pin, the said head portion being made separate from the rack proper and connected to the same by means of a large pin and a small pin, which pass through both sides of the head portion and the shank at the top of the rack proper. The large pin is placed at the back or opposite end of the head from the point where pressure is applied by the lap pin and acts as a pivot for the head portion. The small pin is placed at a point between the large pin and the point where pressure is applied to the head por tion by the lap pin. lVhen excessive pressure is applied to the head portion by the lap pin the small pin is sheared off by the head portion, allowing the head portion to swing upward and backward, thus releasing the lap pin and preventing a breakage of either the head portion, the rack proper or gearing connected to the same. When the small pin is sheared off, due to an excessive pressure on the head portion of calender .excessive pressure to replace the pin after" racks from causes above stated, it is merely necessary after removing the cause of such is designated by the numeral 7. The head,

upon its inner face, and directly below the shank is concaved as at 8. Pivotally secured to the outer end of the head 7, as at 9 are side plates 10 of the movable head portion of the rack; These side plates of the movable head portion are substantially V-shaped in plan but have their upper corners rounded as at 11' and their lower edges, adjacent their. outer corners provided with rounded depressions-12. The rounded corners 11 of the side plates are connected by a rounded or arcuate bottom plate 13. Secured to the outer corner of the side plates 10 is a shaft 14, and on this shaft is journaled arevoluble bearing sleeve-15. Below the depressed portion 12, and, of course, inward of the shank 14 there is secured to the sides a second and larger shaft 16, and on this shaft is mounted a revo'luble bearing sleeve 17. The pivoted head member of the rack, it will be noted, comprises a hollow structure and one of the sides thereof inward of the pivot 9 has an outstanding boss 18 provided with a central opening that registers with an opening 19 in the fixed head 7 and with an opening 20 in the opposite side plate of the pivoted head section. lVhen the pivoted head member or section is swung to proper position on the fixed head a wearable and breakable pin 21 is passed through the alining openings. The boss has a transverse opening 22 therethrough and the pin, inward of its head 23 hasan openin 24E designed to aline' with the opening 22. ldassing through these alining openings is a securing element in the nature of a cotter pin 25.

The lap pin finds a bearing on the bearing sleeves 15 and 16 so that the same may freely revolve.

In starting the lap on the lap pin I have found that owing to the weight of my improved calender rack, which, it should be stated, is heavier than calender racks of the ordinary construction, the weight thereof will maintain a greater friction on the lap pin than that of the ordinary calender rack.

As a consequence, the lap. pin is held from springing in the center and the said weighted head properly balances the rack holding the same ina perfectly vertical position, the weight of'the fixed head preventing the said rack from swinging outwardly as is customary with calender racks of the ordinary construction. From experience I have found that this added weight exerted upon the lap pin permits of the cotton laps being made approximately four inches smaller in diameter than is possible with the old style onepiece rack. l have also found from experience that the pressure of the rack exerted upon the lap pin enables the operator to obtain at least fifteen per cent. more produetion and a decrease in rate of approximately forty per cent. reater between the picker room and the card room than can be obtained by the ordinary rack. This, of course, results in a saving of time, trouble andexpense of the reworking of such waste. and each time that such waste is worked over it tends to depreciate the stability of the cotton, rendering the same of less value to the manufacturer. The laps being more tightly wound and consequently producinga smaller bundle permit of the same being more readily handled than the usual size bundles, and as a consequence when the same are placed on the card the size thereof prevents the cotton from contacting with the revolving slats which is common with the ordinary size bundles and which results in a comparatively great waste.

Having thus described the invention, what is claimed as new, is

1. In a device for the purpose set forth, the combination with a toothed rack having a substantially V-shaped head 011 the upper end thereof and extending in one direction therefrom, a head portion comprising spaced side members and a top member connecting the sides arranged on the V-shaped head and pivotally secured thereto, the side members having openings therethrough, and the V- shaped head having an opening to register with the openings in the side members of the head portion when said head portion is swung to one position on the V-shaped head, a wearable and breakable pin passing through the openings in the head portion and V-shaped head on rack and securing the same thereto.

2. A calender rack having a fixed head extending beyond one of the edges thereof and a movable head pivotally connected to the fixed head and extending beyond the opposite edge of the rack proper, anti-frictional elements carried by the last mentioned head section, and a fragile element locking the movable head section to the fixed head section.

3. A calender rack having a rigid head extending beyond one of the edges thereof, a hollow movable head pivotally secured to the fixed head and extending beyond the opposite edge of the rack, roller members revoluble in the hollow head and providing bearings for a lap pin, and a fragile element securing the movable head to the fixed head.

4. A calender rack having a fixed angle head on the upper end thereof, a hollow head pivotally secured to the fixed head inclosing the fixed head and projecting beyond the edge of the rack opposite that on which the fixed head is formed, said hollow head having its lower edges notched to provide a bearing for the end of a lap pin, revoluble anti-frictional elements carried by the hollow head projecting into the notch, and a fragile element passing through the sides of the hollow head and through the fixed head inward of the pivot between the heads for locking the hollow head to the fixed head.

5. A calender rack for picking machines,

comprising a rack bar adapted for vertical movement of the machine as the lap is wound around the pin of the machine, said bar having at its outer end an integral head, a pivoted head section on the integral head projecting beyond one side thereof and having its end face providing a bearing for the lap pin, and a fragile pin passing transversely through the movable head section and the fixed head section at one side of the pivot for establishing a locking connection between the movable and fixed head sections.

JOHN T. TIOE. 

